Cuspidor



Nov. 15,1927. 1,649,183

A. F. PIEPER CUSPIDOR Filed Feb. 11, 1925 uooooooo Patented Nov. 15, 1927..

' UhllTED; STATES ALPHONSE F. PIEPER, OF ROCHESTER, NEW YORK.

cusrinon.

Application filed February This invention relates to cuspidors and, more particularly, to fountain cuspidor apparatus of the variety for example, adapted for use adjacent a dental chair, the chief object of the invention being to provide a cuspidor bowl and a support therefor of improved construction for insuring eflicient flushing of the bowl with a minimum of water and for facilitating quick and convenient attachment and replacement of the bowl for cleaning and repair.

To these and other ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end m of the specification.

In the drawings Figure 1 is a side elevation of a cuspidor apparatus embodying the present invention with the cuspidor bowl and its supporting means shown'in central section;

Figure 2 is an enlarged View of portions shown in Figure 1, and

Figure 3 is a horizontal plan viewof the cuspidor bowl on the'line 3 --3 in Figure 1.

Similar reference numerals throughout the several views indicate the same parts.

This invention is embodied in the present instance in conjunction with a unitary dental equipment pedestal or stand, such as disclosed in the patentto Oscar H. Pieper and myself, No. 1,376,356. granted April 26, 1921. for unitary dental apparatus, comprising a main hollow column from which extends a hollow arm or support 5 carrying the cuspidor and through which the waste from the latter is discharged into the main column and through the latter to waste pipe connection at its base as well understood in the art.

The cuspidor support or arm 5 preferably has an upwardly turned circular open end 6 connected by means of a union 7 with an arm 8 which is thus mounted for rotary adjustment on the support. Arm 8 carries a valve 9 controlling the water system which is supplied through a pipe 10 pivotally connected by a union 11 with a valve 12 carried by the support and supplied with water through a pipe not shown extending through the latter. Valve 9 controls a nozzle i l carried by an arm 8 for flushing the cuspidor bowl 15 which is mounted on the suppo as here after described. Arm 8 also Hing glass stand 16 11, 1925. Serial No. 8,375.

plied with water through a pipe 17 also controlled by the valve 9. i

Arm 8 comprises a hub 18, the lower end of which is connected as described by means of union '7 with the support. Theupper end of the hub is formed with an upwardly opening circular seat 19 concentric with the end of the arm 5 on which the hub is mounted. The cuspidor bowl is supported on seat 19 and discharges into support 5 through the hub 18 which forms in effect a part of the latter.

The, cuspidor bowl is preferably constructed of glass or porcelain in the general shape shown, having a central waste out-let about which the bowl bottom is curved downwardly as at 20 and seated in an an nular holder 21. The latter'ha's an annular shoulder, as shown, resting on the support seat 19 and also a depending flange 22 ex tending downwardly through seat 19 into the support or hub 18, the outer side of the flange adjacent its bottom being inclined downwardly and outwardly as at 23.

A screw 24 accessibly located in the support bears at a downward inclination against the inclined surface 23 of the flange and thus secures the bowl in its seat by means, however, enabling it to be readily inserted and removed.

The bowl is constructed with a downwar-dly inclined circumferentially extending groove or channel 25 beginning at a water receiving portion 26 and extending around the circumference ofthe bowl bottom for distributing the water over the entire surface of the latter to flush it. It is desirable to provide for the location of the bowl on its seat with the water receiving portion 26 under the nozzle 14 and for this purpose the bowl holder 21 carries a dowel pin 27 cooperating with a hole in the support so located as to insure the proper positioning of the bowl with regard to the nozzle. To assemble the parts the bowl holder flange 22 is in serted in the support seat and rotated until the dowel pin is engaged with its hole after which the bowl is lowered into contact with the seat and secured by turning screw 24:.

There is combined with the above bowl and support construction an advantageous water seal and trap for solid particles, such as dental fillings and the like, the parts of which are also efficiently devised and conveniently detachable for clea i. To this the waste opening of to on more specifically, its holder 21, is provided with a shoulder 28 on which rests the outwardly flared upper end 29 of a spout 30 of generally cylindrical shape and open at both ends. The spout is preferably provided with a yieldable gasket ring 31 of rubber or other suitable material cooperating with shoulder 28 so that the waste from the bowl is discharged through the spout. Preferably also a collector tube 32 is placed in the upper end of the spout as shown with its fiared upper end detachably fitting the converging walls of the bowl opening to collect and direct the water into the spout and improve the appearance of the bowl outlet.

Cooperating with the spout 30 is a con tainer 33 detachably connected adjacent its upper end with the spout as by means of thread convolutions 34 formed in the walls of these parts. The upper end of the container is also preferably turned outwardly as at 35 above a second shoulder 36 on the bowl holder 21 to prevent the container from being dropped into the support. Container 33 has a closed lower end 37 and is provided with waste openings 38 in its sides above its bottom and above the lower end 39 of spout 30 so that these parts form an efiicient water seal for the bowl outlet as well as a trap for receiving and retaining solid particles such as dental fillings and the like. To increase the efliciency of the construction in this respect there is preferably provided a baffle plate 40 supported by strips 41 on the lower end of the spout in horizontal position at a distance below the latter with its periphery 7 adjacent but spaced from the sides of the container. The water descending through the spout has itsdownward motion arrested by this battle which tends to deflect it laterally outward in. the general direction of the waste openings 38, while any solid particles are carried to the edge of the bafile out of the main current and inevitably drop and remain in the container bottom. It is apparent'from this construction that the collector tube 32 may be easily lifted from the bowl outlet and the spout and container then lifted out. The latter parts may be quickly unscrewed and detached from each other to thereby afford access to the bottom of the container and to facilitate cleaning of the parts. The invention thus provides a cuspi:

dor bowl and bowl supporting means of practical and efiicient construction in which the flushing water is received from the supply line and distributed around the periphery of the bowl so that a thin film of water is uniformly discharged over the entire bowl bottom and the quantity of water required for complete flushing is reduced to a minimum. The cooperating portions of the bowl and seat provide for proper location of the water receiving portion of the bowl relative to the water supply line, these parts being so arranged that the bowl may be quickly and conveniently detached and replaced in proper position for purposes of cleaning and repair.

I claim as my invention:

1. In a fountain cuspidor apparatus, water supply means, a cuspidor bowl having a water receiving portion. a support for said bowl and cooperating parts on said support and bowl for locating the water receiving portion of the latter relative to said supply means.

2. In a fountain cuspidor apparatus, water supply means, a cuspidor bowl having circumferentially extending water distributing means provided with a water receiving portion, a support having a seat on which said bowl is mounted, and cooperating parts on said seat and bowl for locating the water receiving portion of the latter relative to said supply means.

3. In a fountain cuspidor apparatus, water supply means, a cuspidor bowl having a water receiving portion and a discharge outlet, a hollow support having a seat on which said bowl is mounted and into which it discharges, and cooperating parts on said seat and bowl for locating the water receiving portion of said bowl under said water supply means.

4. In a cuspidor apparatus, a hollow support having a seat adapted to receive a cuspidor bowl, a bowl on said seat having its bottom inclined downwardly to a central outlet discharging through said seat into said support and having a peripheral water distributing channel provided with a water receiving portion and inclined downwardly from said portion around said bowl, water supply means, and cooperating portions on said support and bowl for locating said water receiving portion of the bowl relative to said water supply means.

5. In a cuspidor apparatus, a hollow support having a seat adapted to receive a cuspidor bowl, a bowl on said seat having its bottom inclined downwardly to a central outlet discharging through said seat into said support and having a peripheral water distributing channel provided with a water receiving portion and inclined downwardly from said portion around said bowl, :1 water supply line extending over the periphery of the bowl. and cooperating portions on said seat and bowl comprising a dowel pin for detachably positioning said bowl with said water receiving portion under said supply line.

6. The combination with a hollow support having an upwardly opening seat, of a cuspidor bowl. a holder for said how] mounted on said seat, a flange on said holder depending into said support, and a locking screw in said support for engagement with said flange to hold the bowl on said seat.

7. The combination with a hollow support having an upwardly opening seat, of a holder mounted on said seat, and a cuspidor bowl on said holder and provided with a water receiving portion, cooperating parts on said holder and support for definitely locating said bowl water receiving portion, a flange on said holder depending through said seat and a locking screw in said support for engagement with said flange to hold the bowl on said seat.

8. The combination with a hollow support having a seat, of a holder mounted on said seat, a cuspidor bowl on said holder and provided with a water receiving portion,

a dowel pin connecting said holder and support for definitely locating said bowl water receiving portion, a flange on said holder depending through said seat and a locking screw in said support and engaging said flange to hold the bowl on said seat.

9. The combination with a hollow support having an upwardly opening seat, of a cuspidor bowl and a holder for the same having an annular shoulder portion mounted on said seat, a dowel pin connecting said shoulder portion and seat, a flange on said holder depending through said seat and a downwardly inclined locking screw in said support in engagement with said flange to hold the bowl on said seat.

'ALPHONSE F. PIEPER. 

